Sash fastener



Feb.1o, 1925. f 1,525,677

R. WASHBURN SASH FASTENER Filed May l, 1922 f'iii f r IIII l um l INVENTE.

` www Patented Feb. 10, 1925i'.

PTNT OFFICE.

ROBERT WASHBURN, 0F HARRISTON, ONTARIO, CANADA.

SASH FASTENER.

Application filed May 1, 1922. Serial No. 557,732.

To ZZ whom t may concern:

Be it known that I, Romani lVAsI-IBURN, of the town of I-Iarriston, in the county of Wellington, Province of Ontario, Canada, a subject of the King of Great Britain, have invented certain new and useful Improvements in Sash Fasteners, of which the following is a specification.

This invention relates to devices for attachment to windows unprovided with counter balances for the purpose of holding them raised to any desired height and to lock them whenever desired to preventthem being raised by persons outside the building, and my object is to devise a fastener of this type which is neat, simple, effective and easily made largely from parts obtainable in the open market.

I attain my object by means of the constructions hereinafter described and illustrated in the accompanying drawings in which- Fig. 1 is a part elevation of part of a window frame and sash showing my improved fastener in position;

Fig. 2 an enlarged front view of the device showing it in position to lock the sash raised; and

Fig. 8 a similar viewl showing it in position with the sash closed.

In the drawings like numerals of reference indicate corresponding parts in the different figures.

1 is a block preferably of wood, which by means of the screws 2 or other fastening devices is secured to the side of the window sash. On the side adjacent the window frame the block has inclined faces formed thereon, these faces inclining each way from the middle. 3 are wedges preferably of Wood adapted to engage between said faces and the window frame. These wedges are connected to the block by means of short pivoted links 4. Wedges in position, but do not interfere with their being` moved readily to the different positions shown. vWhile the links are readily swung past their centers, as there is usually some side play in the window sash, but it is preferable to provide a slot 6 in each link for the passage of one of the pivot pins 8. These pivot pins are preferably wood screws. Each wedge is preferably provided. with a finger hold, by means of which These links retain the` it may be raised or lowered. A screw eye 5, I find satisfactory for my purpose.

The device is operated as follows. lith one hand the window sash is raised and, as soon as it is raised to the desired height, the lower wedge 3 is lifted, it then jams between the block and the sash frame and holds the sash in the position to which it has been raised. To lock the window to prevent it being lifted from without, the upper wedge is pressed down between the sash and the block, the window may thus be locked whether it is wholly down or partly raised.

To provide automatic locking as the sash is raised, I may employ a light coil spring 7 connected at one end to the block 1 and at its other end to the lower wedge 3. This spring will draw the wedge to the locking position as soon as upward movement of the sash ceases.

In case of upper sashes the device may he out in half and the lower part only employed as the upper sash does not need to be locked against upward movement. When so used the spring is of particular advantage as it is more diflicult to reach the wedge for manual operation.

From the above description, it will be seen, that I have devised a fastener which will satisfactorily attain the objects of my invention as set out in the preamble of this specification.

What I claim as my invention is:

A sash fastener comprising a wooden block adapted to be secured to a window sash and having the side adjacent the window frame inclined each way from the middle to form wedge engaging surfaces; wooden wedges adapted to engage between said faces and the window frame.; a pivoted metal link connecting each wedge with the block, the pivots of the links being formed as wood screws threaded into the wooden members whereby they may be readily tightened to yieldably hold the links and therefore the wedges in any desired position, and each link having a sliding engagement with one of its pivots; and linger holds extending from the wedges, each comprising a screw eye threaded into the wedge.

Signed at Toronto, Gan., this 25th da)v of April, 1922.

ROBERT WTA SI-IBURN. 

